The city of Shutenbilt is home to many people of different races, backgrounds, and those who are called Next. Next are people who possess special powers. They are the superheroes who protect peace within the city.

These heroes all have a corporate sponsor whose logo is displayed upon their backs. As they overcome disasters and save people, they improve the image of their sponsors. In addition, they earn Hero Points which determines their ranking on the popular Hero TV programme. The Hero with the most points gains the title of King of Heroes.

One of these Heroes is Wild Tiger (Kaburagi T. Kotetsu), a hotheaded veteran with a strong sense of justice. One day, he is suddenly partnered-off with newbie Barnaby Brooks Jr..